Animatable methods

Methods available on the Animatable instance returned by a createAnimatable() function.

const animatable = createAnimatable(target, parameters);
           ┌─────────────────────┐
animatable.│x(100)               │
animatable.│y(50, 500, 'out(2)') ├─ Methods
animatable.│revert()             │
           └─────────────────────┘